Hammond's Flycatcher
Empidonax hammondii
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyTyrannidae (Tirànids)
- GenusEmpidonax (Empidonax Flycatchers)
- SpeciesEmpidonax hammondii (Hammond's Flycatcher)
Hammond's flycatcher (Empidonax hammondii) is a flycatcher in the family Tyrannidae. This small insectivorous bird inhabits the coniferous and mixed forests of western North America. The name of this bird commemorates William Alexander Hammond who was the surgeon general of the US Army. Hammond collected bird specimens for Spencer Fullerton Baird. Wikipedia →
5–10% of wildlife watchers report a Hammond's Flycatcher sighting in Yellowstone National Park, based on 244 days of visitor records from GBIF citizen-science data.
Closest Relatives at Yellowstone National Park
Dusky Flycatcher
Empidonax oberholseri
Pacific-slope Flycatcher
Empidonax difficilis
Willow Flycatcher
Empidonax traillii
Least Flycatcher
Empidonax minimus
Western Wood-Pewee
Contopus sordidulus
Olive-sided Flycatcher
Contopus cooperi
Eastern Kingbird
Tyrannus tyrannus
Western Kingbird
Tyrannus verticalis
Say's Phoebe
Sayornis saya
Common Raven
Corvus corax
American Robin
Turdus migratorius
Yellow-rumped Warbler
Setophaga coronata
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Hammond's Flycatcher in Yellowstone National Park?
About 6% of wildlife watchers report a Hammond's Flycatcher sighting in Yellowstone National Park, based on 244 days of visitor records from GBIF citizen-science data.
When is the best time to see Hammond's Flycatcher in Yellowstone National Park?
June has the highest sighting rate for Hammond's Flycatcher in Yellowstone National Park in our monthly data.